航天器可展SAR天线结构综述

Review of Deployable SAR Antenna Structures of Spacecraft

论述了航天器径向肋式、缠绕肋式、构架式和环形桁架式四种抛物面可展SAR天线结构的研究现状,分析了四种抛物面可展SAR天线结构的特点,分别对航天器翼式、桁架式和薄膜式三种平面可展SAR天线结构进行了综述,指出了航天器可展SAR天线结构轻质、大收纳比和高精度的发展趋势,提出了航天器可展SAR天线实现展开高精度需攻克的关键技术,旨在为航天器可展SAR天线结构的创新发展提供参考。

The development of four kinds of parabolic antenna structures is presented,including radial rib antenna structure,wrapped rib antenna structure,truss antenna structure and hoop antenna structure.A detailed comparison of these four structures is presented.Additionally,for the planar antenna structures,the features of wing antenna structures,truss antenna structures and membrane antenna structures are summarized.Finally,future trends of large,high packing factor and high surface accuracy are pointed out.And the technical difficulties which should be overcome before space applications of larger and higher-precision SAR antennas are proposed.